My coughs started the day after halloween. The night before, I was at a house party where a lot of people smoke. However I do not smoke. From that day, I have been coughing. First it was only night times but now its during the day too. I was on Yahoo Answers, they told me I could have COPD. Im getting worried, because I searched on this and its not curable. Its been 2 weeks since my coughs started. What can I do? Should I see a doctor?

Just to add, my diet is fine and I do a have an active life.

Also, can this be passed onto other people? I dont want my girlfriend having the same problem too.

I'm not a doctor, but I doubt you have COPD from inhaling smoke at a house party. Smoking is the primary cause of COPD, but it's caused my chronic smoking. Since you're a non-smoker, my guess is that your lungs got irritated from all the smoke and you're having an asthma issue. Coughing as you've described is very common in asthma, especially at night. This cannot be spread to your girlfriend.

You should go see a doctor if you're still coughing, as it's been a month now. If you're no longer coughing then I don't think you need to go to the doctor. If you come across this coughing issue again, I think it would be prudent to go to a doctor to make sure you don't have asthma. Coughing all the time sucks. If it's asthma, there are medications that are very effective in stopping the coughing once it starts and preventing it from starting in the first place.